pH Control Option for IPL-1 and IPL-2

pH Control Module for IPL-2

This option controls and regulates the pH in the buffer solution by carefully bubbling it with CO2. Delivery of CO2 maintains pH when the system is not deoxygenated with a N2 /CO2 gas mixture.

Item# Description U.S. List Price Quantity
73-4308 pH Control Unit for IPL-1 System
73-4282 pH Control Option to IPL-2 Core System, 230 V
73-4283 pH Control Option to IPL-2 System, 115 V
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This option controls and regulates the pH in the buffer solution by carefully bubbling it with CO2. Delivery of CO2 maintains pH when the system is not deoxygenated with a N2/CO2 gas mixture.

The pH is controlled by a feedback system which regulates CO2 gas bubbling into a dedicated small volume reservoir for minimizing foaming of perfusate. The pH is measured with a pH sensor. The pH control module (pHCM) allows setting to a desired pH, e.g. to 7.4.

A certain amount of CO2 is necessary to hold the pH constant in a physiological range. For example, in order to keep the pH in a buffer solution at 7.4 (e.g. in a Krebs-Henseleit buffer), 5% CO2 is necessary. If the measured pH is above this value (e.g. 7.4), a small valve opens so that CO2 from a tank goes to a frit in the reservoir. The CO2 changes the pH to a lower value. As soon the pH of 7.4 is reached the CO2 valve is closed. This acts in a closed loop and regulates the pH by bubbling with CO2. This is only necessary for perfusates which are CO2-dependent buffered.

Note: Available by special order for IPL-4. Please inquire.

Included Items

pH Control Unit for IPL-1 (73-4308) includes:
Item # Product Name
69-0072 Foodtrode™ Protein Resistant pH Electrode
69-0075 Protelyte™ Reference Electrolyte Solution, 100 ml
69-0077 Electrode Connecting Cable, BNC to AS7, 1 m (3.3 ft)
73-1784 BNC-BNC Connecting Cable
73-0215 PLUGSYS pH Measurement Module (pHMM)
73-1776 PLUGSYS pH Control Module (pHCM)
N/A Modified Cover to 0.5 L Reservoir

 

pH Control Unit for IPL-2, 230 V (73-4282) includes: pH Control Unit for IPL-2, 115 V (73-4283) includes:
Item # Product Name Item # Product Name
73-2269  Jacketed Glass Container for Isolated Lung*  73-2269  Jacketed Glass Container for Isolated Lung*
73-0114 REGLO Analog 4 Channel MS-4/8-100, 230 VAC, 50 Hz  73-0113  REGLO Analog 4 Channel MS-4/8-100, 115 VAC, 60 Hz
73-0155 3-Stop Tygon® E-Lab Tubing, 2.79 mm ID, 12/pack, Purple/White  73-0155  3-Stop Tygon® E-Lab Tubing, 2.79 mm ID, 12/pack, Purple/White
69-0072 Foodtrode™ Protein Resistant pH Electrode  69-0072  Foodtrode™ Protein Resistant pH Electrode
69-0075 Protelyte™ Reference Electrolyte Solution, 100 ml  69-0075  Protelyte™ Reference Electrolyte Solution, 100 ml
69-0077 Electrode Connecting Cable, BNC to AS7, 1 m (3.3 ft)  69-0077  Electrode Connecting Cable, BNC to AS7, 1 m (3.3 ft)
73-1784 BNC-BNC Connecting Cable  73-1784  BNC-BNC Connecting Cable
73-0215 PLUGSYS pH Measurement Module (pHMM)  73-0215  PLUGSYS pH Measurement Module (pHMM)
73-1776 PLUGSYS pH Control Module (pHCM)  73-1776  PLUGSYS pH Control Module (pHCM)
73-2811 Mixer for IPL-2 Buffer Reservoir  73-2811  Mixer for IPL-2 Buffer Reservoir


* With overflow to maintain constant perfusion solution level.

PLUGSYS moduels use a total of 4 slot units. Magnetic stirrer and stirbar sold separately

Specifications